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707 17th Street was known as MCI Plaza until 2005; MCI Inc. filed for bankruptcy in 2002, and the company was subsequently acquired by Verizon Communications on February 14, 2005. [4] Prior to its bankruptcy, MCI occupied the uppermost commercial floors of 707 17th Street, and served as the structure's primary tenant. [ 5 ]
Formerly known as MCI Plaza. [17] [18] 8 555 17th Street: 507 / 155 40 1978 Tallest building constructed in Denver in the 1970s. [19] [20] 9 Hyatt Regency Denver at the Colorado Convention Center: 492 / 150 38 2005 1,100 rooms (60 suites). Currently Denver's 2nd largest hotel by room/suite count. [21] [22] 10 Spire: 478 / 145 41 2009
MCI, Inc. (formerly WorldCom and MCI WorldCom) was a telecommunications company. For a time, it was the second-largest long-distance telephone company in the United States , after AT&T .
It was renamed MCI International and its headquarters were moved from New York City to Westchester County, New York. On September 27, 1983, an MCI division led by Vint Cerf, one of the developers of the TCP/IP protocol, launched MCI Mail, one of the first email services, and a data network using the CCITT X.25 packet switching protocol. [21]
American Medical Response - emergency services, corporate headquarters in Greenwood Village, Colorado; Antero Resources - natural gas exploration; Arrow Electronics - corporate headquarters [1] Ball Aerospace & Technologies Corp. - aerospace, corporate headquarters in Westminster, Colorado [1] Bremner Biscuit Company; Coors Brewing Company ...
The Curtis - A DoubleTree by Hilton Hotel is a 350 ft (107m) tall skyscraper in Denver, Colorado. It was completed in 1974 as and has 30 floors. It was completed in 1974 as and has 30 floors. It is the 31st tallest building in the city.
1801 California Street is a skyscraper in Denver, Colorado.The building was completed in 1983, and rises 53 floors and 709 feet (216 m) in height. [2] The building stands as the second-tallest building in Denver and Colorado, and as the 151st-tallest building in the United States.
The building served as Qwest's headquarters until 2000, when the corporation moved to 1801 California Street, the second-tallest building in Denver situated two blocks away. [5] Although Qwest moved its headquarters in 2000, the two brightly lit blue signs on 555 17th Street remained in place for four more years. [ 1 ]